- Update WebSocketUserData to use a message queue for handling outgoing messages, improving concurrency and message delivery.
- Modify pingClients method to handle multiple connections per user and implement timeout logic for ping responses.
- Enhance addConnection and removeConnection methods to manage multiple connections for each user, including detailed logging of connection states.
- Update handleBrokerMessage to send messages to all active connections for a user, ensuring proper queue management and callback invocation.